In the early stages of pregnancy, especially in the first three months, coitus is prohibited because the fetus is in an unstable stage. At this time, the cervix, including the vaginal wall, can be irritated by intercourse, causing the endometrium to become excited, which can lead to bleeding. In some cases, coitus can cause miscarriage, and bleeding can also mean that there is a chance of preterm miscarriage, so coitus is prohibited at this time. It is not said that there are certain precautions for coitus in the first 3 months, because no matter how careful and gentle you are, there are factors that can be detrimental to the fetus, so you need to refrain from coitus as much as possible in the early stage to prevent miscarriage from occurring. After 3 months, you can resume normal sexual life, and you must be gentle during intercourse to avoid damage to the fetus. It is also not recommended to have intercourse after 8 months of pregnancy, because the fetus is constantly growing, the abdomen will also be there to increase, this time due to the pressure will also cause preterm labor.